.logon-ad-layout {
    width: 100%;
    border-collapse: collapse;
    table-layout: fixed;
}

.logon-ad-form {
    width: 360px;
    vertical-align: top;
    padding-right: 40px;
}

.logon-ad-image {
    vertical-align: top;
    text-align: center;
    padding-top: 45px;
}

.logon-ad-image img {
    width: 500px;
    max-width: 100%;
    height: auto;
    display: inline-block;
}

@media (max-width: 900px) {
    .logon-ad-layout,
    .logon-ad-layout tr,
    .logon-ad-layout td {
        display: block;
        width: 100%;
    }

    .logon-ad-form {
        padding-right: 0;
    }

    .logon-ad-image {
        text-align: left;
        padding-top: 25px;
    }

    .logon-ad-image img {
        width: 100%;
        max-width: 760px;
    }
}